RESUMING A PAUSED VIRTUAL MACHINE

• US 20150242232A1
• Filed: 02/27/2014
• Published: 08/27/2015
• Est. Priority Date: 02/27/2014
• Status: Active Grant

• Current Assignee: Red Hat Israel Ltd. (International Business Machines Corporation)
• Original Assignee: Red Hat Israel Ltd. (International Business Machines Corporation)
• Inventors: Simoncelli, Federico, Kaplan, Yeela
• Granted Patent: US 10,459,746 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2009/45575 Starting, stopping, suspending or resuming virtual machine instances
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

A host in a virtualization system pings one or more storage domains. When the host determines that a storage domain in inaccessible and later determines that the storage domain is once again accessible, the host may determine a set of virtual machines associated with the storage domain that are paused. The host may, then, resume at least one of those virtual machines.

Claims

1. A method comprising:

determining, at a first time, that a storage domain is inaccessible;

determining, at a second time later than the first time, that the storage domain is accessible;

determining, after the second time by a processing device, a set of virtual machines that are paused and are associated with the storage domain; and

resuming at least one of the set of virtual machines.

2. The method of claim 1, wherein determining that the storage domain is inaccessible comprises sending a ping to the storage and failing to receive a response within a predetermined amount of time.

3. The method of claim 1, wherein determining the set of virtual machines comprises:

determining one or more virtual machines that are paused; and

determining which of the one or more virtual machines that are paused are associated with the storage domain.

4. The method of claim 1, wherein determining the set of virtual machines comprises:

determining one or more virtual machines that are associated with the storage domain; and

determining which of the one or more virtual machines that associated with the storage domain are paused.

5. The method of claim 1, wherein resuming at least one of the set of virtual machines comprises:

determining, for each of the set of virtual machines, whether to resume the virtual machine; and

resuming the determined virtual machines of the set of virtual machines.

6. The method of claim 5, wherein determining whether to resume the virtual machine comprises determining a reason why the virtual machine was paused.

7. The method of claim 5, where determining whether to resume the virtual machine comprise determining whether all storage domains that the virtual machine is associated with are available.

8. The method of claim 1, further comprising:

pausing, between the first time and the second time, the at least one of the set of virtual machines in response to determining that the storage domain is inaccessible;

recording that the at least one of the set of virtual machines has been paused in response to determining that the storage domain is inaccessible.

9. A non-transitory computer-readable medium having instructions encoded thereon which, when executed by a processing device, cause the processing device to perform operations comprising:

determining, at a first time, that a storage domain is inaccessible;

determining, at a second time later than the first time, that the storage domain is accessible;

determining, after the second time by the processing device, a set of virtual machines that are paused and are associated with the storage domain; and

resuming at least one of the set of virtual machines.

10. The non-transitory computer-readable medium of claim 9, wherein determining that the storage domain is inaccessible comprises sending a ping to the storage and failing to receive a response within a predetermined amount of time.

11. The non-transitory computer-readable medium of claim 9, wherein determining the set of virtual machines comprises:

determining one or more virtual machines that are paused and determining which of the one or more virtual machines that are paused are associated with the storage domain;

or

determining one or more virtual machines that are associated with the storage domain and determining which of the one or more virtual machines that associated with the storage domain are paused.

12. The non-transitory computer-readable medium of claim 9, wherein resuming at least one of the set of virtual machines comprises:

determining, for each of the set of virtual machines, whether to resume the virtual machine; and

resuming the determined virtual machines of the set of virtual machines.

13. The non-transitory computer-readable medium of claim 12, wherein determining whether to resume the virtual machine comprises:

determining a reason why the virtual machine was paused or determining whether to resume the virtual machine;

or

determining whether all storage domains that the virtual machine is associated with are available.

14. The non-transitory computer-readable medium of claim 9, the operations further comprising:

pausing, between the first time and the second time, the at least one of the set of virtual machines in response to determining that the storage domain is inaccessible;

recording that the at least one of the set of virtual machines has been paused in response to determining that the storage domain is inaccessible.

15. An apparatus comprising:

a memory; and

a processing device coupled to the memory, the processing device to;

determine, at a first time, that a storage domain is inaccessible;

determine, at a second time later than the first time, that the storage domain is accessible;

determine, after the second time by the processing device, a set of virtual machines that are paused and are associated with the storage domain; and

resume at least one of the set of virtual machines.

16. The apparatus of claim 15, wherein the processing device is to determine that the storage domain is inaccessible by sending a ping to the storage and failing to receive a response within a predetermined amount of time.

17. The apparatus of claim 15, wherein the processing device is to determine the set of virtual machines by:

determining one or more virtual machines that are paused and determining which of the one or more virtual machines that are paused are associated with the storage domain;

or

determining one or more virtual machines that are associated with the storage domain and determining which of the one or more virtual machines that associated with the storage domain are paused.

18. The apparatus of claim 15, wherein the processing device is to resume at least one of the set of virtual machines by:

determining, for each of the set of virtual machines, whether to resume the virtual machine; and

resuming the determined virtual machines of the set of virtual machines.

19. The apparatus of claim 18, wherein determining whether to resume the virtual machine comprises:

determining a reason why the virtual machine was paused or determining whether to resume the virtual machine;

or

determining whether all storage domains that the virtual machine is associated with are available.

20. The apparatus of claim 15, the processing device further to:

pause, between the first time and the second time, the at least one of the set of virtual machines in response to determining that the storage domain is inaccessible;

record that the at least one of the set of virtual machines has been paused in response to determining that the storage domain is inaccessible.